Antitwisting mechanism



'1. T, WRIGHT.

ANTITWISTING MECHANSIVI.

y APFLICATION FILED FEB.27|1919. l 1,333,147, Patented Mar. 9, 1920.v

mmv/w @N an apparatusfor progressively.removingthe 'rnnononn wmonnoljmnricnmi,JERSEY. o,

' Patenfed'lufsa To all/whom #mag/.concerns .f

Y :Be vit known that LLJArm'sT. Warenna citizen of. the-United States, and resident of Metucheminfthe county-of Middlesex and State .ofNew Jersey, have invented certain new and useful Improvements in Antitwisting Mechanism', of which thefollowingr a specification. i; a i. y

.. In Letters Patent of the United States No."v

1.178,566 datedrApril 11,'1916,fis described v twist from a tape, cord, wire orother'- analogous stockasit is drawn from ja roll; and

` particularly1l :an apparatus rfor operating 151 upon. rolled flat goods, such astape, whereby the out-drawn stock is intermittently turned in opposition to the direction .of the twistsov A as to :leave the progressing material fiat' andk f es y.cwable of being efficiently worked.` i

`YI.In the fform of invention illustratedfin said Letters'Patent there is provided' a rotatable support foraroll or rolls-of stock;

an electric motor'operati'vely connected with' thesupport ;V and an oscillatory-guide for the stock as it runs fromtheiroll or rolls: said .guide being operatively associated with ythe contacts of anormally-open.electric .circuit in'V which the electric motor is included` whereby when the guide ispartiallv turned by the increased tension on thestock, resulting from twisting, thecircuitlis `closed and the motor, being lenergized,ei"ects.jthe parv tial .rotation of thesupport and the rollin a direction to untwist! the stock, and whereby when the stofk is thus untwistedand'is under normal `tension the guide isretraCted to breaky the electric circuit` and temporarily denergize the .motor until the tension onthe ltapeis again increased; and so onf-in alternation.V f

.The-*direct makingqand breaking ofthe main. electric circuit bv lthevarying tension i Von the 'tape was relatively slow and hence,

due .tov the high voltage, the contacts were soon destroyed. -To overcomev this defect is theobject of my present invention. and accordingly I provide, in addition to the main i circuit in which the motor is included, a sup- :plementary circuit in which theguide-conltrolled contacts, an electric battery. and an electro-magnetic contact device for the main ,circuit are .i11c1`uded` which 'device-is inter,

Ignittently` energized `and ideniergized theV operation of thetape controlledrguide contacts and is adapted to makehand break the main.electric-circuitand thus determine the active'gand idle conditions Yof. themotora; all las will be hereinafter. described and claimed.v 5" f In thedra. l L v i Figure 1i isl a, side elevation.:V partly' diaTv grammatic,` ofV an antitwisting machine equipped-with 4circuit making and breaking devices .embodying the preferred form of nay-invention;v p Fig; Qis a plan ofthe said devices. ai Fig. 3 is ajfside elevationof the Esame. f yFight is" aftransversexsection as on the line 4-4 of Fig. 2.. Y'

Referring to.theidraw1ngs."10 -a i ing a verticalshaftwhichlis stepped inw-,a bearing inai'base 111. IA cylindrical 'casing/12 borne ,by theturn-table isladaDted to. contain a rollf or rol-ls .offmaterialgsuch yasn-fiat;v tape rotary lsupport comprisinga'turnftable hav- 13. tobe operated upon.; An electric'fmotorr v14 is operatively connected fwfitliff the turn Y table and -is designed to rotate the `latter lat intervalsin order to remove .the'twistgpro' if gressivelyfromthestock'aslit isbeing with- 'drawn'from the roll or rollsll Inthe present instance a belt andpnlley connection is'illustratedbetween the motorshaft and :the vshaft got the'turn-table. Themainsofthe electric circuit for `the motor areindcated atfl( Supported aY suitable. distanceabove.; the y y turn-table is a; contactfcontrolling devicefor a supplemental electric'circuitl., .having an independent .source of electric supply.V such, 1. y

, med, as at 21, toan 3.111122 extendingfrom. a.

` the twisting of the tape, saidmem-ber audits `bracket 23, -aiiiXed to a suitably-disposed shelf 24,'whereby said member when under pressure willlturnyonva verticalaxis;v Hence when the tension'A onthetapef as it .passes` upon andover the member 17 isincreased by associated parts are`V partiallyr'otat'ed, and whenthe increasedtension isre-moved theyV are returned to their normal position.

The spacedapart legs 20 of the plate 2Q embrace an' upstandingvibratory contact member 25which is pivotally supported:at` its lower en d in an insulating block 26 on thebracliet andis included iu thesupple:

.mentary` electric circuiti: In thispzcircuit is -al'sowireludedj a4 contactfplate 27 YVwhich is 'secur'edrtoaan insulating block 281cm the bracket `arid isf arranged ini the.V pathot the upperv endtof the'c'ontact membervQ, whereby when the latter is oscillated by the'vvary# ing action of the running'tapefon the sup prting': member`17 above" described, such. circuit is brckeuaiidlcornpleted at. intervals. In: the supplemental: circuit is also included an electromagnet. 29 which issupported on the shelf 24. The armature 30 ofthe mag-` net is formed ont orvsecure'dto theA longer arm of aleverSlawhic'h.` isV fulcrumed on Va postA rising from the baseSS of4 the electromagnet. The shorter army Of-IjthisI'eVer is depressed in `.opposition to :the action ofl the magneti Y by a suitab'ly.;disposed.v spring 134;

ithe'. ,upwardwthrow of the longer. `arm' of 4the lever'being determined by `a stopescrew '35 mol'mtedton'` al postf 36 on'v thebase' 33. The

longer' arm ofthe lever is .providedvwith .a

Y set-screw Vhaving1an'insulating;tip 37 Y y whichbearsuponl one of-two'norlna'lly separated 'contact' plates 38,- 39 respectively',

which` are inclu'dedvin thefrnain Velectric circuit; wherfeb.y,"\k during'th-e'i operation' of the 'armatureiand theiever through the making fand `the breaking-of the supplemental circuit sbr'ibed, L the-main circuit is= completed. and

" broken, Theirccntactgpilates" 38", 391: a'refai-'e mounted; om insujlating',` block; 40` on f the #When i the.I running? tape.' as: itipassies over thief gu'i'de-'clements under' normal tension beth ithefmain-- andzsupplemental s circuits are broken,... andJ theretores themotorr is idle but whew thetensioir of suchutape is increased -by the@ twisting"Orfthei portion between the ro'll .ori roliste-.and 'the t guide-'element the latterfis. partially;rotated'tey cause' one off the liriche cflthleplate 20L`to swing 'thefvibratory centact`-member 25 against the'A complementary 'Contact member 27 cf the supplemental circuit'glthus corrrpletingV the: latter' circuit,

exrergiz'in'the magnet,'-,and, perfiirce, quickly closing t Y e? contacts# of the main: circuit whichthe'motor isI included.. The moter, -b'e'ilngr enerfgi'zed,A rotates' :thei casing-12 and ,the-tagada..aedirectxomtcnrembve-ithe .twist from the. running tape, whereupon the normal tension on the tape effects the return cf' the, guileelement ,to its previous conditionl;tliereby movingthe'plateQO vin a manner to A swing the contact member :25 from n/ormal'ftravel of the tape until" the" tension 1 on the latteriSriHereaScd, and so on in a1- ternation. v y a From the foregoing.'constructionnandop eratiou'litwill berseen that: themakin'g: and vbreaking oifthe main circmtxareeach -quicklly eiifected and? that the. otherwise 'liability .of

the member,27,andmbreakl the supplementallv circuiti Thisdone; theelectro-magnet, oe- -l iugdenergized, instantly releases the armature and` breaks the main circuit, thus deyenergizi1-1gthe motor and permitting. the

burningieutthe' contacteren. such. circuitlis f I do. not i'limit -niyslf to the; specific de'.-YV tails of' construction herein shown*y anddefscribed, as Vthe:mechan'isn'n mayl be.V variously modified .l withir'i.` the spirit` ofi invention 1. The combination offer-rotatable stock support, an. electric` motor, operative con# nectionbetween said. support' motor,a'

' main electric'l circuit in which' saidlmotor is included,- an electro-magnet for inte-limite tentlyzclosiing; andxopenin'g said circuit, Va

supplemental electric circuit. in 'which sai-d electro#lnafgiiet is included, and'. means includirrg.- a movable stobfk Iguide for intermit-i tentlyopeniI-rgandi Vclosing said latter circuitiV runs', a. device'` `mounted' .to turn .withlthei said member, a cont'act adapted-te'be vactuated vby said device', a. secQnd'conta'ctfinthefjpath of thefi'rst Contact, andi a;supplernentafl-` electric circuitincludingthesaidicuntacts andzelec f tro'gmagnetl s. The combinaties. of fom-abre steek support, ei'ectr'ic: motor', .operativer con? isincluded, an electro-magnet for intermit'- tently closing.' and?. openiillrgsaid".` circuit; a pivotally=suspended rodhaving a bifiiurcate'd device at its uppe'rer'rd and a stockgui'de atf1ts'..1ower endi, a vibratory'contact enrF Y. braced-lby said. device, aisecon'dcbntactin the .path :ofthe vibratorycontact, and'asuppl'emental Velectric `circuit including; the said contactsandxgthe.electroemagnet 4P." The? combinationcf af rotatablecstock su 'ort.anelectriefmotor o erative connee'-VV PP a i tionbet'iveen said'support .andfmotorg afrainV eleetrlcxcircuatimkwhrchtsndimotorzandetwn contacts are inclulel,l an e1ectro-magnet, a

lever carrying the armature of the magnet",y said lever adapted to make and break the said contacts, a pivotally-suspended rod hav- 5 ing abifurcated device at its upper end and a stock guole at its lower endzavibratory contact embraced `by said devlce, a second Contactl in the path of the vibratoryfcotact, and a supplementalv electric circuit including York, this 13th day of February, A. D.-19,19. JAMESTHEODOREWRIGHT. 

